161 lines
3.4 KiB
C
161 lines
3.4 KiB
C
#ifndef NO_POSIX_SOURCE
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#undef _POSIX_SOURCE
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#define _POSIX_SOURCE 1
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#undef _POSIX_C_SOURCE
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#define _POSIX_C_SOURCE 2
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#endif
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#include <assert.h>
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#include <ctype.h>
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#include <stdlib.h>
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#ifdef OLD_REALLOC
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#define realloc(s,l) myrealloc(s,l)
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#endif
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#ifdef DMALLOC
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#include "dmalloc.h"
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#endif
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#include "csv.h"
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static int semicol=0;
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/* csv_setopt -- set language */ /*{{{C}}}*//*{{{*/
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void csv_setopt(int sem)
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{
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semicol=sem;
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}
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/*}}}*/
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#if 0
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/* csv_date -- convert string "year<sep>month<sep>day<sep>" to date */ /*{{{*/
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static struct CSV_Date csv_date(const char *s, const char **end)
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{
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struct CSV_Date date;
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assert(s!=(const char*)0);
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assert(end!=(const char**)0);
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*end=s;
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if (*s=='"')
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{
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++s;
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if (isdigit(*s))
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{
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for (date.year=0; isdigit(*s); date.year=10*date.year+(*s-'0'),++s);
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if (*s)
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{
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++s;
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if (isdigit(*s))
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{
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for (date.month=0; isdigit(*s); date.month=10*date.month+(*s-'0'),++s);
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if (*s)
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{
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++s;
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if (isdigit(*s))
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{
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for (date.day=0; isdigit(*s); date.day=10*date.day+(*s-'0'),++s);
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if (*s=='"')
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{
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++s;
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*end=s;
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}
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}
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}
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}
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}
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}
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}
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return date;
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}
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/*}}}*/
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#endif
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/* csv_separator -- convert string \t to nothing */ /*{{{*/
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void csv_separator(const char *s, const char **end)
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{
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assert(s!=(const char*)0);
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assert(end!=(const char**)0);
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*end=s+(*s=='\t' || (semicol && *s==';') || (!semicol && *s==','));
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}
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/*}}}*/
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/* csv_long -- convert string [0[x]]12345 to long */ /*{{{*/
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long csv_long(const char *s, const char **end)
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{
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long value;
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const char *t;
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assert(s!=(const char*)0);
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assert(end!=(const char**)0);
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if (*s=='\t') { *end=s; return 0L; };
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value=strtol(s,(char**)end,0);
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if (s!=*end)
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{
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t=*end; csv_separator(t,end);
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if (t!=*end || *t=='\0' || *t=='\n') return value;
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}
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*end=s; return 0L;
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}
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/*}}}*/
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/* csv_double -- convert string 123.4e5 to double */ /*{{{*/
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double csv_double(const char *s, const char **end)
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{
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double value;
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const char *t;
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assert(s!=(const char*)0);
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assert(end!=(const char**)0);
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if (*s=='\t') { *end=s; return 0.0; };
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value=strtod(s,(char**)end);
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if (s!=*end)
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{
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t=*end; csv_separator(t,end);
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if (t!=*end || *t=='\0' || *t=='\n') return value;
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}
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*end=s; return 0.0;
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}
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/*}}}*/
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/* csv_string -- convert almost any string to string */ /*{{{*/
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char *csv_string(const char *s, const char **end)
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{
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static char *string;
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static int strings,stringsz;
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assert(s!=(const char*)0);
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assert(end!=(const char**)0);
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strings=0;
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stringsz=0;
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string=(char*)0;
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if (!isprint((int)*s) || (!semicol && *s==',') || (semicol && *s==';')) return (char*)0;
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if (*s=='"')
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{
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++s;
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while (*s!='\0' && *s!='\n' && *s!='"')
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{
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if ((strings+2)>=stringsz)
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{
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string=realloc(string,stringsz+=32);
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}
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string[strings]=*s;
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++strings;
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++s;
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}
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if (*s=='"') ++s;
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}
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else
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{
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while (*s!='\0' && *s!='\n' && *s!='\t' && ((!semicol && *s!=',') || (semicol && *s!=';')))
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{
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if ((strings+2)>=stringsz)
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{
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string=realloc(string,stringsz+=32);
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}
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string[strings]=*s;
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++strings;
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++s;
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}
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}
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string[strings]='\0';
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*end=s;
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csv_separator(s,end);
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return string;
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}
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/*}}}*/
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